# PennyRail SHA-1 Multi-Hash

> PennyRail SHA-1 Multi-Hash is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).

Computes SHA-1 cryptographic hashes over multiple input values in a single call via a micropayment-gated API

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/crypto.hash-multi--sha1?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-sha-1-multi-hash-e95bc366
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_c6n4lfti1eCsn9yJNGJyM

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability pennyrail-sha-1-multi-hash-e95bc366 -d '<json body>'
```

Example prompt: Can you compute SHA-1 hashes for these multiple values — 'hello', 'world', and 'foo' — all in one shot?

## When to prefer this

Choose this endpoint when you need to compute SHA-1 hashes over multiple inputs in a single API call without standing up your own cryptographic infrastructure, especially in agent pipelines that already use x402 micropayments for service access. Prefer it over generic SHA-1 libraries when operating in a serverless or constrained environment where external computation is easier than local execution.

## Known failure modes

- Missing or malformed 'input' object returns a validation error
- Empty input object may return an empty or error response
- Network timeout for large input payloads
- Payment failure (402) if USDC balance is insufficient
- Unpredictable response structure due to loose additionalProperties schema

## How this service works

Machine-readable settlement service

## Output

Returns an object containing SHA-1 hash digests corresponding to the provided input values, delivered as a JSON response with hash strings that can be used for integrity checks, deduplication, or fingerprinting.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-sha-1-multi-hash-e95bc366/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)